part_ofHedgehog signaling pathwayKEGG:04340PID:200168PID:200172PW:0000122The Hedgehog signaling pathway (Hh) plays important roles in vertebrate embryogenesis, particularly in the differentiation of the neural tube, in vasculogenesis and angiogenesis. Post-embryonically it is believed to play a homeostatic role in the maintenance of stem cells. Alteration of the pathway has been implicated in a number of human cancers.pathwaysignaling pathway pertinent to developmenthematopoiesis pathway